Ink maintenance system for ink jet cartridges

Details Ink maintenance system for ink jet cartridges Ink maintenance system for ink jet cartridges

2007-12-25

2007-12-25

Vo, Anh T. N. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S084000

Reexamination Certificate

active

11053646

ABSTRACT:
An ink supply system is provided for commercial ink jet printing equipment having multiple disposable ink jet printing cartridges. The ink supply system of the invention is adapted to maintain ink supply to multiple ink jet cartridges by circulating a supply of ink from an independent storage reservoirs through the ink jet cartridge and back to the reservoir via a circulation pump in a closed loop system. Flexible supply and return tubing interlinks the storage reservoir with the modified ink jet printing cartridge and a circulation pump for return back to the ink jet storage reservoir. The system maintains ink jet cartridge required internal negative pressure in a balanced circulation supply replenishment system replacing ink as it is used by the print cartridge.

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